Revert of Delay Input.dispatchKeyEvent response until after key event ack.

content/browser/devtools/render_frame_devtools_agent_host.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/devtools/render_frame_devtools_agent_host.h"
 
 #include <tuple>
 #include <utility>
 
 #include "base/guid.h"
@@ skipping 566 matching lines @@
 }
 
 void RenderFrameDevToolsAgentHost::OnClientDetached() {
 #if defined(OS_ANDROID)
   power_save_blocker_.reset();
 #endif
   if (emulation_handler_)
     emulation_handler_->Detached();
   if (page_handler_)
     page_handler_->Detached();
-  input_handler_->Detached();
   service_worker_handler_->Detached();
   target_handler_->Detached();
   frame_trace_recorder_.reset();
   in_navigation_protocol_message_buffer_.clear();
 }
 
 RenderFrameDevToolsAgentHost::~RenderFrameDevToolsAgentHost() {
   Instances::iterator it = std::find(g_instances.Get().begin(),
                                      g_instances.Get().end(),
                                      this);
@@ skipping 549 matching lines @@
     RenderFrameHost* host) {
   return (current_ && current_->host() == host) ||
       (pending_ && pending_->host() == host);
 }
 
 bool RenderFrameDevToolsAgentHost::IsChildFrame() {
   return current_ && current_->host()->GetParent();
 }
 
 }  // namespace content